JPS59132459A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS59132459A
JPS59132459A JP662883A JP662883A JPS59132459A JP S59132459 A JPS59132459 A JP S59132459A JP 662883 A JP662883 A JP 662883A JP 662883 A JP662883 A JP 662883A JP S59132459 A JPS59132459 A JP S59132459A
Authority
JP
Japan
Prior art keywords
pressure
tank
magnetic disk
pipe
case
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP662883A
Other languages
Japanese (ja)
Inventor
Mitsuyoshi Saito
斎藤　光由
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP662883A priority Critical patent/JPS59132459A/en
Publication of JPS59132459A publication Critical patent/JPS59132459A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

PURPOSE:To solve problems of adsorption and dust of a magnetic disk by forming and containing a head disk assembly in a case containing nitrogen or inactive gas in the atmosphere having a pressure higher than atmospheric pressure. CONSTITUTION:A nitrogen gas or an inactive gas bomb 4 is connected to a case of a magnetic disk device sealed conventionally through a pipe 5 and a valve 6 and a pressure gage 7 are added to the case and the pipe. A vent 8 and a check valve 9 are provided to one end of the pipe. The check valve 9 is closed after the air in the tank is discharged after the assembling of the head assembly is done. Then, the inactive gas is filled in the tank by observing the pressure gage 7. A pressure sensor 10 is provided separately in the tank and the pressure in the tank is observed normally, allowing to keep the tank pressure into a pressure into a pressure slightly higher (>=10mHg) than the atmospheric pressrure. Thus, no adsorption occurs in a minute gap between the disk and the head because of the change in external conditions. Further, no consideration is required on the invasion of dust at all.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 この発明は磁気ディスク装置に関する。[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a magnetic disk device.

〔従来技術とその問題点〕[Prior art and its problems]

第１図は従来の磁気ディスク装置のヘッドディスクアセ
ンブリの構成を示す。磁気ディスク１及びヘッドアセン
ブリ２はケース３の中に大気圧の状態の中で収納されて
いる。FIG. 1 shows the configuration of a head disk assembly of a conventional magnetic disk device. The magnetic disk 1 and head assembly 2 are housed in a case 3 under atmospheric pressure.

最近の磁気ディスク装置は、高密度記録化が進んでおり
、それに従って、磁気ディスクと磁気ヘッドの隙間は０
．５μｍ以下の値に移行している。Recent magnetic disk drives are becoming more densely packed, and the gap between the magnetic disk and magnetic head is now zero.
．． It has shifted to a value of 5 μm or less.

この隙間が微少化するに従って、磁気ヘッドが磁気ディ
スクに吸着する問題や、装置内のゴミの問題、各部品の
長寿命化の問題が生じてくる。As this gap becomes smaller, problems arise such as the magnetic head being attracted to the magnetic disk, the problem of dust inside the device, and the problem of extending the life of each component.

〔発明の目的〕[Purpose of the invention]

磁気ディスク装置の吸着の問題やゴミの問題を解決し、
各部品の長寿命化を計シ得る磁気ディスク装置の構造で
ある。Solve the problems of magnetic disk drive adsorption and dust,
This is the structure of a magnetic disk device that can extend the life of each component.

〔発明の概要〕[Summary of the invention]

磁気ディスク装置のへラドティスフアセンブリを収納す
るケース内の圧力を大気圧＋１０　ｍｍＨｇ以上の雰囲
気とし、このケース内に充填する気体は乾燥チッ素ガス
又は、不活性ガスを用いる。The pressure inside the case housing the heradotisf assembly of the magnetic disk device is set to an atmosphere of atmospheric pressure +10 mmHg or higher, and the gas filled in the case is dry nitrogen gas or an inert gas.

〔発明の効果〕〔Effect of the invention〕

磁気ディスク装置のケース内の圧力を大気圧よシ微少圧
加圧し、その雰囲気ガスを乾燥チッ素ガス又は不活性気
体の乾燥ガスで充填する事によって以下の利点を実現す
る事ができる。The following advantages can be achieved by slightly pressurizing the inside of the case of the magnetic disk device above atmospheric pressure and filling the atmospheric gas with dry nitrogen gas or inert dry gas.

最木大きな利点は、磁気ディスクと磁気ヘッドの微少隙
間は、外部条件、すなわち、気温、湿度の変化に伴って
吸着現象はおきない。The biggest advantage is that the small gap between the magnetic disk and the magnetic head does not cause adhesion due to changes in external conditions, such as temperature and humidity.

従って、磁気ヘッドの浮上量が小さくなっても、微少隙
間は容易に形成し得る特徴を有する。又、従来、磁気デ
ィスク装置の中に、吸湿剤を配している場合もあるが、
その必要はな（なる。Therefore, even if the flying height of the magnetic head becomes small, a small gap can be easily formed. In addition, conventionally, there are cases where a moisture absorbent is placed inside a magnetic disk device.
There's no need for that.

磁気ディスク装置のケース内の圧力を大気圧よ）微少圧
増加する事により、外部よシゴミの進入を全く考慮する
必要がなくなる。従って、磁気デー（スフ装置を設置す
る場合、外部環境の清浄度を無視する事が出来る。磁気
ディスク装置を構成する部品は超精密加工部品や、長寿
命を期待される潤滑油が使用されるため、乾燥チッ素ガ
ス又は不活性ガスの充填によって部品の酸化や、潤滑油
の劣化が著じるしく減少し得るため、磁気ディスク装置
の長寿命化が容易に実現し得る。By increasing the pressure inside the case of the magnetic disk drive by a small amount (from atmospheric pressure), there is no need to consider the ingress of dirt from the outside. Therefore, when installing a magnetic disk device, the cleanliness of the external environment can be ignored.The parts that make up the magnetic disk device are ultra-precision machined parts and lubricants that are expected to have a long life are used. Therefore, the oxidation of parts and the deterioration of lubricating oil can be significantly reduced by filling with dry nitrogen gas or inert gas, so that the life of the magnetic disk device can be easily extended.

〔発明の実施例〕[Embodiments of the invention]

第２図に本発明の一実施例を示す。 FIG. 2 shows an embodiment of the present invention.

従来密封していた磁気ディスク装置のケースにチッ素ガ
ス又は不活性ガス容器４を管５で接続し、この容器と管
にバルブ６と圧力計７を付設しておく。この管の一方に
排気口８と閉止バルブ９を設ける。磁気ディスク装置の
ヘッドアセンブリを組立后、タンク内の空気を排出し後
、閉止バルブ９を閉じる。その後、圧力計７をみて、不
活性ガスをタンク内に充填する。タンク内には別途圧力
センサー１０を設け、常時タンク内圧力を観察する事に
よって、常時、タンクの圧力を大気圧より微少゛圧扁い
雰囲気を持続できる。A nitrogen gas or inert gas container 4 is connected to a conventionally sealed case of a magnetic disk device through a pipe 5, and a valve 6 and a pressure gauge 7 are attached to the container and the pipe. An exhaust port 8 and a shutoff valve 9 are provided on one side of this pipe. After assembling the head assembly of the magnetic disk drive, the air in the tank is exhausted, and then the shutoff valve 9 is closed. Then, while watching the pressure gauge 7, fill the tank with inert gas. A separate pressure sensor 10 is installed inside the tank to constantly observe the pressure inside the tank, thereby making it possible to maintain an atmosphere where the pressure in the tank is slightly lower than atmospheric pressure at all times.

【図面の簡単な説明】[Brief explanation of drawings]

第１図に、従来の磁気ディスク装置を示す概略断面図、
第２図は本発明の一実施例を示す概略断面図である。 １・・・磁気ディスク、２・・・ヘッドアセンブリ、３
・・・ケース、４・・・ガス容器、５・・・管、６・・
・バルブ、７・・・圧力計、８・・・排気管、９・・・
閉止バルブ、１０・・・圧力センサー。FIG. 1 is a schematic sectional view showing a conventional magnetic disk device.
FIG. 2 is a schematic sectional view showing an embodiment of the present invention. 1... Magnetic disk, 2... Head assembly, 3
...Case, 4...Gas container, 5...Pipe, 6...
・Valve, 7...pressure gauge, 8...exhaust pipe, 9...
Shutoff valve, 10...pressure sensor.

Claims (1)

【特許請求の範囲】[Claims] 活性ガス雰囲気の容器内に収納して形成する磁気ディス
ク装置。A magnetic disk device that is formed by being housed in a container with an active gas atmosphere.
JP662883A 1983-01-20 1983-01-20 Magnetic disk device Pending JPS59132459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP662883A JPS59132459A (en) 1983-01-20 1983-01-20 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP662883A JPS59132459A (en) 1983-01-20 1983-01-20 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS59132459A true JPS59132459A (en) 1984-07-30

Family

ID=11643620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP662883A Pending JPS59132459A (en) 1983-01-20 1983-01-20 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS59132459A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0447412A1 (en) * 1988-11-14 1991-09-25 Maxtor Corp Method and apparatus for improved thermal isolation and stability of disk drives.
EP0453996A2 (en) * 1990-04-24 1991-10-30 Fujitsu Limited Magnetically recording disk system
US5317463A (en) * 1990-09-25 1994-05-31 Conner Peripherals, Inc. Information recording apparatus with a liquid bearing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0447412A1 (en) * 1988-11-14 1991-09-25 Maxtor Corp Method and apparatus for improved thermal isolation and stability of disk drives.
EP0453996A2 (en) * 1990-04-24 1991-10-30 Fujitsu Limited Magnetically recording disk system
US5436776A (en) * 1990-04-24 1995-07-25 Fujitsu Limited Disk system having a slider which is continuously heated for preventing organic material buildup
US5317463A (en) * 1990-09-25 1994-05-31 Conner Peripherals, Inc. Information recording apparatus with a liquid bearing

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